Getting from SeaTac to Downtown: While there are numerous hotel shuttles and taxis to take you the 15 miles from SeaTac to downtown, for those on a budget the public bus system is generally clean and efficient, can probably get you near your hotel (depending on where you're staying, of course) for under a couple bucks. Try their travel planner to see if you want to make this work. Metro Route #194 provides the quickest bus service between the airport and downtown with express buses leaving every 15 minutes during the week. The airport provides approximate rates for various providers for this trip - look for "Seattle - Downtown" in the destination list.